Entropy and the Ehrenfest urn model
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Martin J. Klein
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Article
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1956
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Elsevier Science
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This note concerns the entropy of the Ehrenfest urn model. Both Boltzmann and Gibbs entropies are discussed. It is shown that they agree at equilibrium. The Boltzmann entropy shows fluctuations in time while the Gibbs entropy is proved to increase monotonically to its maximum (equilibrium) value. Th